Download PDF
Free download in PDF Chemical Bonding Multiple Choice Questions & Answers for competitive exams. These short objective type questions with answers are very important for competitive exams like IIT-JEE, NEET, AIIMS, JIPMER etc. These short solved questions or quizzes are provided by Gkseries.
(1)
Which of the following would have a permanent dipole moment ?
[A]
BF3
[B]
SiF4
[C]
SF4
[D]
XeF4
(2)
In the case of alkali metals, the covalent character decreases in the order
[A]
MCl > MI > MBr > MF
[B]
MF > MCl > MBr > MI
[C]
MF > MCl > MI > MBr
[D]
MI > MBr > MCl > MF
Answer: MI > MBr > MCl > MF
(3)
Which one of the following species does not exist under normal conditions ?
[A]
Be+2
[B]
Be2
[C]
B2
[D]
Li2
(4)
In a regular octahedral molecule, MX6 the number of X-M-X bonds at 180°
is
(5)
The angular shape of ozone molecule (O3) consists of
[A]
1 sigma and 2 pi-bonds
[B]
2 sigma and 2 pi-bonds
[C]
1 sigma and 1 pi-bonds
[D]
2 sigma and 1 pi-bonds
Answer: 2 sigma and 1 pi-bonds
(6)
The correct order of increasing bond angles in the following species is
[A]
Cl2O < ClO2 < ClO−2
[B]
ClO2 < Cl2O < ClO−2
[C]
Cl2O < ClO−2< ClO2
[D]
ClO−2 < ClO2 < Cl2O
Answer: Cl2O < ClO−2< ClO2
(7)
Which of the following has p bonding ?
[A]
NO−3
[B]
SO2−3
[C]
BO3−3
[D]
CO2−3
(8)
According to molecular orbital theory which of the following lists rank the nitrogen species in terms of increasing bond order ?
[A]
N−2 < N2 < N2−2
[B]
N2−2 < N−2 < N2
[C]
N2 < N2−2 < N−2
[D]
N−2 < N2−2 < N2
(9)
In which of the following molecules/ions BF3, NO2-,NH2- and H20, the central atom is sp2 hybridised?
[A]
NO2- and NH2-
[B]
NH2- and H20
[C]
NO2- and H20
[D]
BF3 and NO2-
(10)
Which one of the following is planar ?
[A]
XeF4
[B]
XeO4
[C]
XeO3F
[D]
XeO3F2
(11)
In PO3−4 ion, the formal charge on each oxygen atom and P-O bond order respectively are
[A]
-0.75, 0.6
[B]
-0.75, 1.0
[C]
-0.75, 1.25
[D]
-3.1, 1.25
(12)
The correct order of increasing bond angles in the following triatomic species is
[A]
NO2- < NO2+ < NO2
[B]
NO2- < NO2 < NO2+
[C]
NO2+ < NO2 < NO2-
[D]
NO2+ < NO2- < NO2
Answer: NO2- < NO2 < NO2+
(13)
Equilateral shape has
[A]
sp hybridisation
[B]
sp2 hybridisation
[C]
sp3 hybridisation
[D]
dsp2 hybridisation
Answer: sp2 hybridisation
(14)
AsF5 molecule is trigonal bipyramidal. The hybrid orbitals used by As-atoms for bonding are
[A]
dx2−y2, dz2, s, px, py
[B]
dxy, s,px, py, pz
[C]
s, px, py, pz, dxy
[D]
dx2−y2, s, px, py, pz
Answer: s, px, py, pz, dxy
(15)
Overlap of which of the following atomic orbitals would be maximum to form the strongest covalent bond.
[A]
1s-2s (σ)
[B]
1s-2p (σ)
[C]
2p-2p (π)
[D]
2p-2p (σ)
(16)
which of the following gas is least polarizable ?
[A]
He
[B]
Ne
[C]
Kr
[D]
Xe
(17)
Which of the following statements is correct for compound HgCl2, SnCl2 and F2O have
[A]
all have linear shape
[B]
HgCl2 and SnCl2 are linear and HgCl2 is V-shaped
[C]
HgCl2 is linear while SnCl2 and F2O are V-shaped
[D]
none of these
Answer: HgCl2 is linear while SnCl2 and F2O are V-shaped
(18)
The correct order of increasing bond angle order is
[A]
NH−2>NH3 >NH+4
[B]
NH+4>NH3 >NH−2
[C]
NH3>NH−2 >NH+4
[D]
NH3>NH+4 >NH−2
(19)
Species in which central atom is sp2 hybridised
[A]
(CH3)3N
[B]
(SiH3)3N
[C]
(SiO2)n
[D]
NH3
(20)
The number of sigma bonds in P4O10 is
[A]
6
[B]
16
[C]
20
[D]
7
Take Mock Tests